ECE 456/556 Mechatronics Lab 1
Question
Task
TA Check Point
Timed Experiment
Page 1/5
SOLUTION
ECE456/556 Mechatronics
Lab 1:
Familiarization of the Mechatronics lab equipment
Task 1.
Set up the Triple Output DC Power Supply to +12V, -12V and +5V.
Task 2.
Measure the voltage of the DC Power Supply by Digital Multimeter (DMM).
Table 1. Data sheet for Task 2.
DMM
Range
Supply
1
2
3
4
5
6
7
8
9
10
20V
+6V
(
No.7
)
-25V
(
No.8
)
+25V
(
No.9
)
200V
+6V
(
No.7
)
-25V
(
No.8
)
+25V
(
No.9
)
Question 1.
What is the difference between selecting the 20V button and 200V
button as the range of the voltage value to be measured?
Answer:
Voltage range of 20V can measure the signal with higher precision but
lower in range while voltage range of 200V can measure the signal with higher
range but lower precision.
Question 2.
Compare the best accuracy and the worst accuracy of the measurements
between the meter range of 20V and 200V.
Answer
: The measurement value come from the same device (digital multimeter).
The accuracy of both measurements would be nearly the same. To calculate the
accuracy
Accuracy = (measured value - true value)*100% / (full range value)
